You can run it with 7 volts to 40 volts as input. And 9 volts will come out as output. Any 12v ONU will run with 9 volts. You can run it directly on a solar system without any extra circuit. A large cooling system is added inside to keep the chipset cool, thermal paste is used under the heat sink, and I used the metal body of a 2.5 inch SSD as a heat sink. I set up the router on the balcony, so I made and set up an automatic day-night sensor for it. A heat sink is used inside the ONU with processor thermal paste. Added a beep-beep sound system if the optical fiber is cut/broken anywhere or if the optical signal from the isp is turned off, there is also a switch to turn off the sound if you want. It will come with the router and ONU adapter, and an Ethernet cable from ONU to router. However, both the router and ONU will run with just one adapter, which will also lower the electricity bill.